timevalve has a lifetime warranty on the stainless steel parts of the exhaust, and a 25,000 mile warranty on the cat:
"Our Stainless Guarantee does not tarnish with age..
Our guarantee is inflexible - every stainless steel part in every stainless steel exhaust system we manufacture is guaranteed for as long as you own your car.
Specifically excluded from this guarantee are the catalytic converter "bodies" which we buy from outside sources. These have an industry standard 25,000 mile warranty on their ceramic cores. Also excluded are the rubber and metal detachable hangers that we purchase from Mercedes-Benz. These hanger parts fasten the exhaust system to the chassis and are designed to be replaced once every seven or eight years. We recommend that you inspect them for wear during each oil change. "
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".